A fun new twist on the classic jam-filled linzer cookies, these colorful flower-shaped cookies are buttery, tender, and even gluten-free (gluten free). (You'd never guess!) Classic Linzer Cookies contain ground nuts and are crisp and buttery. They sandwich a fruity jam center, traditionally raspberry, and generally have a cutout on top so you can see the jam. They are then finished with powdered sugar. We found a way to tint the powdered sugar, and it looks amazing! See more below for our step-by-step instructions on to do it.COOKIE RECIPE HELP / GLUTEN-FREE RECIPE HELP